Answer:
17. 29
18. 6
19. 16
20. 115
Step-by-step explanation:
17.
x+y+7
**plug in the x and y values**
(12)+(10)+7
22+7
29
18.
x+4-y
**plug in the x and y values**
(12)+4-(10)
16-10
6
19.
8(x-y)
**plug in the x and y values**
8(12-10)
8(2)
16
20.
7(12+3)+(10)
7(15)+10
105+10
115
This is what I got out for all the questions!! Have a FANTASTIC rest of your day!! Remember to ease your stress!! :))
Answer:
To 
view graph
Step-by-step explanation:
To we can say that 
then we find cut points. For y=0 
⇒
as can be seen in the graph for any value of y greater that 0, x will always take values greater than 1, for values of y less than 0, x will take values less than 1
